Meditation and Concentration are two different things. Infact, opposite to each other. Concentration is about focusing on a particular thing, while in meditation you just LET GO, just BE. You will not hold on to any thoughts or feelings. Meditation is total deconcentration. You need to become EMPTY within.
However, when you keep practicing meditation, your mind becomes stable leading to an unwavering mind. This will help you in focusing on your day to day activities better and get them done. Your mind becomes clearer and your intellect sharper. You become lighter and peaceful inside.back